EP1962035A2 - Climatiseur refroidi par eau et procédé de commande correspondant - Google Patents

Climatiseur refroidi par eau et procédé de commande correspondant Download PDF

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Publication number
EP1962035A2
EP1962035A2 EP07120695A EP07120695A EP1962035A2 EP 1962035 A2 EP1962035 A2 EP 1962035A2 EP 07120695 A EP07120695 A EP 07120695A EP 07120695 A EP07120695 A EP 07120695A EP 1962035 A2 EP1962035 A2 EP 1962035A2
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EP
European Patent Office
Prior art keywords
water
refrigerant
compressor
condenser
temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07120695A
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German (de)
English (en)
Other versions
EP1962035A3 (fr
Inventor
Gyoo Ha No. 541-1202 Baekseolmaeul-seongji Apt. Jung
Dong Woon Dongnbaekjigu-chodangmaeul-koaroo Apt. Jeong
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of EP1962035A2 publication Critical patent/EP1962035A2/fr
Publication of EP1962035A3 publication Critical patent/EP1962035A3/fr
Withdrawn legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/14—Heat exchangers specially adapted for separate outdoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/02—Heat pumps of the compression type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/02—Domestic hot-water supply systems using heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
    • F24D19/1072—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water the system uses a heat pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/18—Hot-water central heating systems using heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/08—Compressors specially adapted for separate outdoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/42—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger characterised by the use of the condensate, e.g. for enhanced cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/174—Supplying heated water with desired temperature or desired range of temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/219—Temperature of the water after heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/254—Room temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/281—Input from user
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/305—Control of valves
    • F24H15/31—Control of valves of valves having only one inlet port and one outlet port, e.g. flow rate regulating valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/335—Control of pumps, e.g. on-off control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/375—Control of heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/375—Control of heat pumps
    • F24H15/38—Control of compressors of heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/375—Control of heat pumps
    • F24H15/385—Control of expansion valves of heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/40—Control of fluid heaters characterised by the type of controllers
    • F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—Component parts or details not otherwise provided for in this subclass
    • F25B2400/23—Separators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2509—Economiser valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2116—Temperatures of a condenser
    • F25B2700/21161—Temperatures of a condenser of the fluid heated by the condenser
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/12—Hot water central heating systems using heat pumps

Definitions

  • the present invention relates to a water-cooling type air conditioner and a method for controlling the same, and more particularly, to a water-cooling type air conditioner and a method for controlling the same, in which the temperature of heating water or hot sanitary water is raised even at a severely cold region.
  • water-cooling type air conditioners are apparatuses, which perform heat exchange between water supplied to a water supply pipe, installed in a condenser instead of a blowing fan, and a refrigerant flowing along a refrigerant pipe.
  • Korean Patent Laid-open Publication No. 10-2005-0046844 discloses a water-cooling type air conditioner, in which water flowing from a storage tank enters a water-cooling type condenser, passes through a cooling water circulation part so as to heat exchange with a refrigerant flowing along the cooling water circulation part, and then is returned to the inside of the storage tank.
  • the improved water-cooling type air conditioner includes a compressor, a water-cooling type condenser, an evaporator, and an expansion device, as disclosed in the above Patent, which are installed in an outdoor unit, and a heating pipe, which is installed on the floor or the wall of an indoor space. Then, the water heated by the water-cooling type condenser flows along the heating pipe, thus heating the indoor space.
  • the above conventional water-cooling type air conditioners are disadvantageous in that when an outdoor air temperature is lowered, a heating capacity is deteriorated and the rise in the temperature of hot sanitary water is limited.
  • the outdoor air temperature is lowered, the density of a refrigerant flowing along a refrigerant pipe installed in the outdoor unit is decreased, and the mass of the refrigerant in a refrigerant flow is decreased. Consequently, the water-cooling type air conditioners have a reduced heat exchange capacity, and thus the heating capacity is reduced or the hot sanitary water cannot be raised to a high temperature.
  • a method for increasing the pressure at the side of an outlet of the compressor so as to raise the temperature of the heating water or the hot sanitary is proposed.
  • the compression ratio of the compressor is excessively increased, and thus the compressor is overloaded and has a shortened life span.
  • the outdoor air temperature is low, the refrigerant in a liquid phase in the evaporator cannot be sufficiently evaporated, and thus the pressure at the side of an inlet of the compressor becomes relatively low.
  • the pressure at the outlet of the compressor is increased so as to raise the temperature of the heating water or the hot sanitary water, the compression ratio is abnormally increased and then the compressor is overloaded. Accordingly, the method for increasing the compression capacity of the compressor so as to solve the above problem is not employed.
  • one aspect of the invention is to provide a water-cooling type air conditioner and a method for controlling the same, in which the temperature of heating water or hot sanitary water can be raised even when an outdoor air temperature is lowered.
  • the present invention provides a method for controlling a water-cooling type air conditioner comprising determining whether or not the temperature of water supplied to a heating system or a hot sanitary water supplying system via a condenser, for achieving heat exchange between water and a refrigerant, is lower than a reference temperature; and converting a portion of the refrigerant, condensed by the condenser, into a gas phase and transmitting the refrigerant in the gas phase to a compressor without passing through an evaporator, when it is determined that the temperature of the water is lower than the reference temperature.
  • the portion of the refrigerant, condensed by the condenser, may be converted into the refrigerant in the gas phase by adjusting the opening degree of an electric expansion valve installed between the condenser and the evaporator.
  • the refrigerant in the gas phase may be transmitted to the compressor by opening an injection valve installed in an injection pipe connecting a gas-liquid separator, installed between the electric expansion valve and the evaporator, and the compressor.
  • the present invention provides a water-cooling type air conditioner comprising a compressor for compressing a refrigerant, evaporated by heat exchange with outdoor air in an evaporator; a condenser for condensing the refrigerant, discharged from the compressor, into a liquid phase by heat exchange with water; a heating or hot sanitary water supplying system using water heated via the condenser; a second electric expansion valve for converting the refrigerant in the liquid phase, discharged from the condenser, into a gas-liquid mixed phase; a gas-liquid separator for separating the refrigerant in the gas-liquid mixed phase into the refrigerant in the gas phase and the refrigerant in the liquid phase; a first electric expansion valve for expanding the refrigerant in the liquid phase, discharged from the gas-liquid separator, by decompression and transmitting the refrigerant to the evaporator; and an injection valve installed in an injection pipe for transmitting the refrigerant in the gas phase, discharge
  • the injection pipe may be connected to a compression chamber of the compressor or a suction pipe of the compressor.
  • the water-cooling type air conditioner may further comprise a water temperature sensor for measuring the temperature of the water supplied to the heating or hot sanitary water supplying system via the condenser; and a microcomputer for turning on the injection valve so as to transmit the refrigerant in the gas phase to the compressor, when the temperature of the water measured by the water temperature sensor is lower than a reference temperature.
  • the condenser and the evaporator may be installed in an outdoor unit, and the heating system may be installed in an indoor space.
  • a water-cooling type air conditioner in accordance with an embodiment of the present invention includes an outdoor unit 10, a heating system 34 and a hot sanitary water supplying system 37, and a supply pipe 32 and a discharge pipe 31 for connecting the outdoor unit 10 to the heating system 34 and the hot sanitary water supplying system 37.
  • a circulation pump 41 which pumps water of the heating system 34 and the hot sanitary water supplying system 37 to the outdoor unit 10, is installed in the supply pipe 32, and a water temperature sensor 33, which measures the temperature of water flowing from the outdoor unit 10 to the heating system 34 and the hot sanitary water supplying system 37, is installed in the discharge pipe 31.
  • the outdoor unit 10 includes a compressor 11, which compresses a refrigerant in a gas phase, a condenser 12, which achieves heat exchange between the refrigerant in the gas phase transmitted from the compressor 11 and water flowing from the heating system 34 and the hot sanitary water supplying system 37 so as to convert the refrigerant in the gas phase into a liquid phase, and a second electric expansion valve 22, which converts the refrigerant in the liquid phase into a gas-liquid mixed phase.
  • the outdoor unit 10 further includes a gas-liquid separator 13, which separates the refrigerant in the gas-liquid mixed phase, obtained by the second electric valve 22, into the refrigerant in the gas phase and the refrigerant in the liquid phase, a first electric expansion valve 14, which expands the refrigerant in the liquid phase, discharged from the gas-liquid separator 13, by decompression, an evaporator 15, which achieves heat exchange between the refrigerant in the liquid phase, transmitted from the first electric expansion valve 14, and outdoor air so as to convert the refrigerant in the liquid phase into the gas phase, and an evaporator fan 16, which blows air to the evaporator 15.
  • a gas-liquid separator 13 which separates the refrigerant in the gas-liquid mixed phase, obtained by the second electric valve 22, into the refrigerant in the gas phase and the refrigerant in the liquid phase
  • a first electric expansion valve 14 which expands the refrigerant in the liquid phase, discharged from the gas-liquid separator 13, by decompression
  • the injection pipe 21 is connected to a compression chamber (not shown) of the compressor 11, or a suction pipe of the compressor 11.
  • the refrigerant flowing from the gas-liquid separator 13 to the compressor 11 via the injection pipe 21 has a higher pressure than that of the refrigerant inhaled from the evaporator 15 to the compressor 11, and thus has a larger mass than that of the refrigerant inhaled from the evaporator 15 to the compressor 11.
  • the heating system 34 includes a heating pipe 35 constructed on the floor or the wall of an indoor space, and a heating valve 36 for allowing water to flow from the condenser 12 to the heating pipe 35 or shutting out the water.
  • the hot sanitary water supplying system 37 includes a hot sanitary water supplying tub 38 for storing water, and a hot sanitary water supplying valve 39 for allowing water to flow to the hot sanitary water supplying tub 38 or shutting out the water.
  • the hot sanitary water supplying tub 38 is connected to the discharge pipe 31 and the supply pipe 32.
  • the water, passed through the condenser 12, is supplied to the hot sanitary water supplying tub 38 via the discharge pipe 31, and the water, stored in the hot sanitary water supplying tub 38, flows to the condenser 12 via the supply pipe 32.
  • the hot sanitary water supplying tub 38 may not be directly connected to the discharge pipe 31 and the supply pipe 32, but a pipe, along which hot sanitary water flows, may be installed in the hot sanitary water supplying tub 38 so as to heat the water in the hot sanitary water supplying tub 38.
  • the water-cooling type air conditioner in accordance with the embodiment of the present invention may further include, as shown in FIG. 2 , an input unit 43 having a heating button (not shown) for allowing a user to input heating instructions, a heating temperature dial (not shown) for setting a heating temperature, and a hot sanitary water supply button (not shown) for allowing the user to input hot sanitary water supplying instructions, an indoor temperature sensor 44 for measuring an indoor temperature, and a microcomputer 42 for controlling the operation of the components, such as the second electric expansion valve 22, the injection valve 20, etc., of the water-cooling type air conditioner.
  • a heating button for allowing a user to input heating instructions
  • a heating temperature dial for setting a heating temperature
  • a hot sanitary water supply button for allowing the user to input hot sanitary water supplying instructions
  • an indoor temperature sensor 44 for measuring an indoor temperature
  • a microcomputer 42 for controlling the operation of the components, such as the second electric expansion valve 22, the injection valve 20, etc., of the water-cooling type air conditioner.
  • a user When an outdoor air temperature is lowered and thus the heating of an indoor space is required, a user inputs heating instructions by pressing the heating button of the input unit 43 and sets a target temperature by turning the heating temperature dial. Further, when the supply of hot sanitary water is required, the user inputs hot sanitary water supplying instructions by pressing the hot sanitary water supply button of the input unit 43 (S50).
  • the microcomputer 42 When the heating or the hot sanitary water supplying instructions are inputted, the microcomputer 42 turns on the heating valve 36 or the hot sanitary water supplying valve 39 (S52). Then, the microcomputer 42 operates the compressor 11 and the circulation pump 41 (S54). Here, the microcomputer 42 completely opens the second electric expansion valve 22 so as not to affect the phase of the refrigerant, and turns off the injection valve 20 so as to prevent the refrigerant in the gas phase from being transmitted from the gas-liquid separator 13 to the compressor 11.
  • the compressor 11 When the compressor 11 is operated, the refrigerant discharged from the compressor 11 is heat exchanged with water in the condenser 12, thus being condensed into a liquid phase. Then, the refrigerant in the liquid phase is expanded by decompression in the first electric expansion valve 14, and is transmitted to the evaporator 15. Thereafter, the refrigerant is heat exchanged with outdoor air in the evaporator 15, thus being converted into a gas phase.
  • the circulation pump 41 When the circulation pump 41 is operated under the condition that the heating valve 36 or the hot sanitary water supplying valve 39 is turned on, the water in the heating pipe 35 or the hot sanitary water supplying tub 38 passes through the supply pipe 32, the condenser 12, and the discharge pipe 31, and is circulated into the heating pipe 35 or the water supplying tub 38. Thereby, the temperature of the water flowing to the heating pipe 35 or the hot sanitary water supplying tub 38 is gradually raised.
  • the microcomputer 42 determines whether or not a heating load or a hot sanitary water supplying load is satisfied (S56).
  • the microcomputer 42 determines that the heating load is satisfied, when the indoor temperature reaches the target temperature set by the user. Accordingly, the microcomputer 42 compares the indoor temperature, sensed by the indoor temperature sensor 44, with the target temperature, and determines whether or not the heating load is satisfied from a result of the comparison. Further, the microcomputer 42 determines that the hot sanitary water supplying load is satisfied, when the user withdraws the hot sanitary water supplying instructions by pressing again the hot sanitary water supplying button.
  • the microcomputer 42 determines whether or not the water temperature, i.e., the temperature of the water flowing from the condenser 12 to the heating pipe 35 or the hot sanitary water supplying water tub 38, sensed by the water temperature sensor 33 is not lower than a reference temperature (S58).
  • the reference temperature is the lowest temperature, at which the heating and the hot sanitary water supplying can be normally performed, (for example, a temperature of 65°C), and it is preferable that a proper reference temperature is set by various experiments carried out by water-cooling type air conditioner manufacturers.
  • the microcomputer 42 determines that the heating or the hot sanitary water supplying can be normally carried out, and thus the cycle is returned to the step S56.
  • the microcomputer 42 determines that the heating or the hot sanitary water supplying cannot be normally carried out, and thus reduces the opening degree of the second electric expansion valve 22 and turns on the injection valve 20 (S60).
  • the opening degree of the second electric expansion valve 22 When the opening degree of the second electric expansion valve 22 is reduced, a portion of the refrigerant in the liquid phase discharged from the condenser 12 is converted into a gas phase, and then the refrigerant in a gas-liquid mixed phase flows into the gas-liquid separator 13.
  • the opening degree of the second electric expansion valve 22 may be set to different values according to the outdoor air temperature, or be set to a specific value (for example, 40%), and it is preferable that the opening degree of the second electric expansion valve 22 is set by proper experiments carried out by water-cooling type air conditioner manufacturers.
  • the gas-liquid separator 13 separates the refrigerant in the gas-liquid mixed phase into a gas phase and a liquid phase. Then, the refrigerant in the liquid phase is expanded by decompression in the first electric expansion valve 14, and is transmitted to the evaporator 15. Further, the refrigerant in the gas phase passes through the injection pipe 21, and is transmitted to the compression chamber or the suction pipe of the compressor 11. The refrigerant in the gas phase, which is transmitted from the gas-liquid separator 13 directly to the compressor 11, has a higher pressure than that of the refrigerant in the gas phase, which is transmitted from the evaporator 15 to the compressor 11, and thus has a larger mass than that of the refrigerant in the gas phase, which is transmitted from the evaporator 15 to the compressor 11.
  • the amount of the refrigerant transmitted from the compressor 11 to the condenser 12 is increased, and the heat exchange capacity of the condenser 12 when the injection valve 20 is turned on is higher than that of the condenser 12 when the injection valve 20 is turned off.
  • the temperature of the water flowing from the condenser 12 to the heating pipe 35 or the hot sanitary water supplying tub 38 is further raised.
  • the pressure at the side of the inlet of the compressor 11 is increased compared with the conventional water-cooling type air conditioner.
  • the compressor 11 can be operated at a low compression ratio compared with the conventional water-cooling type air conditioner, and thus the life span of the compressor 11 is not shortened.
  • a method for increasing the pressure at the side of the outlet of the compressor 11 so as to raise the temperature of the water flowing to the heating pipe 35 or the hot sanitary water supplying tub 38 when an outdoor air temperature is lowered may be employed.
  • the present invention provides a water-cooling type air conditioner and a method for controlling the same, in which the heating of an indoor space or the supply of hot sanitary water is normally achieved even at a severely cold region.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Computer Hardware Design (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
EP07120695.7A 2007-02-24 2007-11-14 Climatiseur refroidi par eau et procédé de commande correspondant Withdrawn EP1962035A3 (fr)

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KR1020070018761A KR101162756B1 (ko) 2007-02-24 2007-02-24 수냉식 공기조화기 및 그 제어방법

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2423605A1 (fr) * 2010-08-24 2012-02-29 C.P. Comercial Prestcold, S.A. Système de climatisation combiné fournissant du froid, de la chaleur et de l'eau chaude domestique
EP2428740A3 (fr) * 2010-09-08 2018-03-14 Samsung Electronics Co., Ltd. Climatiseur et son procédé de fonctionnement

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101590884B1 (ko) * 2008-12-03 2016-02-19 삼성전자 주식회사 공기조화기 및 그 제어방법
CN105318606B (zh) * 2014-07-29 2018-06-26 青岛海信日立空调系统有限公司 一种空调器室内机、室外机及空调器
CN105890224A (zh) * 2014-11-02 2016-08-24 詹平治 压缩冷/热水采暖采冷集成器
CN105972852A (zh) * 2016-07-08 2016-09-28 广东美的制冷设备有限公司 空调系统

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11153363A (ja) * 1997-11-20 1999-06-08 Matsushita Electric Ind Co Ltd インジェクション機能を有する冷凍サイクルの制御装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6477857B2 (en) * 2000-03-15 2002-11-12 Denso Corporation Ejector cycle system with critical refrigerant pressure
JP3835141B2 (ja) * 2000-09-01 2006-10-18 株式会社デンソー ヒートポンプ
US6474087B1 (en) * 2001-10-03 2002-11-05 Carrier Corporation Method and apparatus for the control of economizer circuit flow for optimum performance
JP2006071257A (ja) * 2004-08-06 2006-03-16 Daikin Ind Ltd 冷凍サイクル装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11153363A (ja) * 1997-11-20 1999-06-08 Matsushita Electric Ind Co Ltd インジェクション機能を有する冷凍サイクルの制御装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2423605A1 (fr) * 2010-08-24 2012-02-29 C.P. Comercial Prestcold, S.A. Système de climatisation combiné fournissant du froid, de la chaleur et de l'eau chaude domestique
EP2428740A3 (fr) * 2010-09-08 2018-03-14 Samsung Electronics Co., Ltd. Climatiseur et son procédé de fonctionnement

Also Published As

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EP1962035A3 (fr) 2015-02-18
KR20080078767A (ko) 2008-08-28
CN101251288A (zh) 2008-08-27
CN101251288B (zh) 2010-06-02
KR101162756B1 (ko) 2012-07-05

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